/Engine/Plugins/Online/OnlineSubsystemUtils/Source/OnlineSubsystemUtils/Classes/InAppPurchaseReceiptsCallbackProxy.h
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(MinimalAPI) class UInAppPurchaseReceiptsCallbackProxy : public [UObject](API\Runtime\CoreUObject\UObject\UObject)
FOnlineProxyInA...
OnFailure
Called when there is an unsuccessful In-App Purchase transaction.
FOnlineProxyInA...
OnSuccess
Called when there is a successful In-App Purchase transaction.